elysium/apps/api/src/routes/prestige.ts

import type { GameState, PrestigeRequest } from "@elysium/types";
import { Hono } from "hono";
import { prisma } from "../db/client.js";
import { authMiddleware } from "../middleware/auth.js";
import {
  buildPostPrestigeState,
  isEligibleForPrestige,
} from "../services/prestige.js";

export const prestigeRouter = new Hono();

prestigeRouter.use("*", authMiddleware);

prestigeRouter.post("/", async (context) => {
  const discordId = context.get("discordId") as string;
  const body = await context.req.json<PrestigeRequest>();

  const characterName = body.characterName?.trim();
  if (!characterName) {
    return context.json({ error: "characterName is required" }, 400);
  }

  const record = await prisma.gameState.findUnique({ where: { discordId } });

  if (!record) {
    return context.json({ error: "No save found" }, 404);
  }

  const state = record.state as unknown as GameState;

  if (!isEligibleForPrestige(state)) {
    return context.json(
      { error: "Not eligible for prestige — collect 1,000,000 total gold first" },
      400,
    );
  }

  const { newState, newPrestigeData, runestonesEarned } = buildPostPrestigeState(
    state,
    characterName,
  );

  const now = Date.now();
  await prisma.gameState.update({
    where: { discordId },
    data: { state: newState as object, updatedAt: now },
  });

  await prisma.player.update({
    where: { discordId },
    data: {
      characterName,
      totalGoldEarned: 0,
      totalClicks: 0,
      lastSavedAt: now,
    },
  });

  return context.json({
    runestones: runestonesEarned,
    newPrestigeCount: newPrestigeData.count,
  });
});